Process op making shoe-soles



H. ROTH.

PROCESS OF MAKING SHOE SOLES.

APPLICATION FILED MAYVIO, 1918.

1,322,955, Patented Nov. 25, 1919.

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HARRY ROTH,,OF NEWPORT, KENTUCKY;

PROCESS 0F MAKING SHOE-SOLIS.

Application filed May 10, 1918.

To all whom it may concern:

Be it known that I, HARRY Born, a citizen of the United States, residing at Newport, Campbell county, Kentucky, have invented a new and useful Process of Making Shoe- Solcs, of which the following is a specifi cation.

T his invention relates to a process of making shoe soles, wherein a sole is made of increased length without the use of additional material.

in carrying out the process, a shoe sole blank is divided substantially throughout its heel seat portion by a split diagonal to the surfaces of the blank, the separated sections moved relatively and longitudinally to the desired extent while maintaining the lapped relation, and such sections cemented together, to provide the required length of sole.

By this method the original sole is made of increased length, without the use of any additional material whatever, and the newly formed sole is solid, and for all manufacturing purposes equal to the original sole.

In the accompanying drawings 1 have illustrated the different stages through which a sole blank is passed in the course of its treatment and manufacture in order to provide a finished sole somewhat longer than the original blank, and in said drawings Figure 1 is a plan view of a soleblank which is too short for making a sole of the length desired.

Fig 2 is a side elevation of the sole blank cut in a long inclined plane to provide two parts having matching surfaces, as shown.

Fig. 3 is a plan view of the sole blank after the two parts have been secured together to form an elongated sole blank composed of the two connected parts.

Fig. 4 is a side elevation of the blank illustrated in Fig. 3.

Fig. 5 isa plan view of a finished sole made from. the extended or elongated blank illustrated in Figs. 3 and 4.

Fig. 6 is a view showing the upper side of the finished sole. 7

Fig. 7 is a side elevation of the finished soleillustrated in Fig. 6.

Fig. 8 is a crosssectional view on the line 88 of Fig. 6. i

The sole blank illustrated in Fig. 1 is composed of leather and is of a length hich is too short for the use to which it is de- Speeification of Letters Patent.

Patented Nov. 25, 1939,

Serial hi0. 233,698.

sired to apply it. It is a well known fact that shoe manufacturers have encountered difiiculty because of their inability, previous to this invention, to increase the lengths of sole blanks in stock, and that occasions often arise creating a demand for larger quantities of sole blanks of increased length than the manufacturers have on hand. Various efforts have been made to overcome this difiiculty but with unsatisfactory or indifferent results.

My present invention provides a solution for this ditticulty and has been employed with satisfactory results. As practised, my invention consists in cutting a quantity of shoe blanks which are too short for use for the desired purpose in a long inclined out extending forwardly and downwardly from a line very near the upper edge of the heel portions of the blanks to a line about one,

fourth ''of the length of the sole blank, more or less, so that two separated parts are prori'ded from each sole blank, substantially as the part 2 in a long inclined plane, as shown,

so that the rear portion 0 the part 1 is nearly of the same thickness as the part 2.

Next, glue or some other appropriate adhesive substance is placed upon one or both of the matching inclined surfaces of the separated parts and said parts are placed together with the part 1 extending beyond the rear end/of the part 2 the desired or' necessary distance to make up the difference between -the length of the original sole blank and the length to which it is desired to extend the same. Pressure is then applied to the two overlapped parts by means of a press, or other similar means, which pressure causes the adhesive substance to bind and secure the two parts together. The extended sole blank thus constructed is illustrated in Figs. 3 and 4:. I

Next, the sole blank is out or shaped to the desired contour to form the sole, as shown in Figse and 6, in which it will be observed that the extended portion 1 constitutes an actual part of the sole at the heel portion thereof.

After being shaped, as shown in Fig. 5, the sole is cut or turned around the edge to provide a feather 3 for receivin a superimposed sewed part of the s cc. This feather is extended to the heel portion of the sole which is nearly commensurate with the part 1 of the sole. Also, the inclined channel 4 is made to form a space for the inv seams of the shoe, the ends of'the channel being slightly in front of the forward end of the part 1 of the sole.

From the foregoing it Will be observed that by my invention a shoe sole is provided having a length in excess of the original blank from which the finished sole is made and that the thickness of the sole thus constructed is nearly uniform throughout its length. This invention solves a practical difficulty and meets an existing need for means for making shoe soles of various lengths from blanks of different shorter lengths in a very efiicient manner.

The order in which the various operations are performed is unimportant since the elongation of the sole blank or sole may be effected if the operations be performed in an order different from that described. .I do not restrict myself to these or other uncssential details, but What I claim and def sire to secure by Letters Patent is The process of increasing the length of a shoe sole blank, consisting in dividing it substantially throughout its heel, seat portion by a transverse split diagonal to the upper and lower surfaces of-the blank, and cementing together the split surfaces of the resulting sections with the heel end of one section overlapping the heel end of the other section in order to obtain a blank of greater length than that of the original blank.

HARRY ROTH. 

